So here is the chart 
Drive Ratio
1st  × 4.22= 9.50
2nd  × 4.22= 5.49
3rd  × 4.22= 3.76
4th  × 4.22= 2.74
Gear RatioR&P RatioOverall
Drive Ratio
RPM Drops
Based on 8000 RPM
1st to 2nd   =   3378
2nd to 3rd   =   2523
3rd to 4th   =   2157
Gear   Speed at bottom of gear*   Speed at top of gear*   Speed range of gear*   % of Pull
1st   -   65.2   -   
-
2nd   65.2   112.8   47.6   
29.7%
3rd   112.8   164.8   52.0   
32.4%
4th   164.8   225.7   60.9   
37.9%
Vehicle Top Speed*
Based on 8000 RPM.
226
*All speeds in MPH
Alternate Gear Combinations
These gear combinations will result in the exact same "Overall Drive Ratios" as the R&P and gears you entered in Step 1 and Step 2 above.
R&P Ratio   3.44   3.88   4.13   4.22   4.38   4.57   4.86   5.14   5.38   5.43   5.86   6.14   6.17
1st Gear   2.76   2.45   2.30   2.25   2.17   2.08   1.95   1.85   1.77   1.75   1.62   1.55   1.54
2nd Gear   1.60   1.41   1.33   1.30   1.25   1.20   1.13   1.07   1.02   1.01   0.94   0.89   0.89
3rd Gear   1.09   0.97   0.91   0.89   0.86   0.82   0.77   0.73   0.70   0.69   0.64   0.61   0.61
4th Gear   0.80   0.71   0.66   0.65   0.63   0.60   0.56   0.53   0.51   0.50   0.47   0.45   0.44
Adjust R&P Ratio
2.25
1.30
0.89
0.65
Vehicle Speed (MPH)
RPM   1st   2nd   3rd   4th
RPM   1st   2nd   3rd   4th
1000   8.1   14.1   20.6   28.2
1100   9.0   15.5   22.7   31.0
1200   9.8   16.9   24.7   33.9
1300   10.6   18.3   26.8   36.7
1400   11.4   19.7   28.8   39.5
1500   12.2   21.2   30.9   42.3
1600   13.0   22.6   33.0   45.1
1700   13.9   24.0   35.0   48.0
1800   14.7   25.4   37.1   50.8
1900   15.5   26.8   39.1   53.6
2000   16.3   28.2   41.2   56.4
2100   17.1   29.6   43.3   59.2
2200   17.9   31.0   45.3   62.1
2300   18.7   32.4   47.4   64.9
2400   19.6   33.9   49.4   67.7
2500   20.4   35.3   51.5   70.5
2600   21.2   36.7   53.6   73.3
2700   22.0   38.1   55.6   76.2
2800   22.8   39.5   57.7   79.0
2900   23.6   40.9   59.7   81.8
3000   24.4   42.3   61.8   84.6
3100   25.3   43.7   63.9   87.5
3200   26.1   45.1   65.9   90.3
3300   26.9   46.5   68.0   93.1
3400   27.7   48.0   70.1   95.9
3500   28.5   49.4   72.1   98.7
3600   29.3   50.8   74.2   101.6
3700   30.2   52.2   76.2   104.4
3800   31.0   53.6   78.3   107.2
3900   31.8   55.0   80.4   110.0
4000   32.6   56.4   82.4   112.8
4100   33.4   57.8   84.5   115.7
4200   34.2   59.2   86.5   118.5
4300   35.0   60.7   88.6   121.3
4400   35.9   62.1   90.7   124.1
4500   36.7   63.5   92.7   126.9
4600   37.5   64.9   94.8   129.8
4700   38.3   66.3   96.8   132.6
4800   39.1   67.7   98.9   135.4
4900   39.9   69.1   101.0   138.2
5000   40.7   70.5   103.0   141.1
5100   41.6   71.9   105.1   143.9
5200   42.4   73.3   107.1   146.7
RPM   1st   2nd   3rd   4th
RPM   1st   2nd   3rd   4th
5300   43.2   74.8   109.2   149.5
5400   44.0   76.2   111.3   152.3
5500   44.8   77.6   113.3   155.2
5600   45.6   79.0   115.4   158.0
5700   46.5   80.4   117.4   160.8
5800   47.3   81.8   119.5   163.6
5900   48.1   83.2   121.6   166.4
6000   48.9   84.6   123.6   169.3
6100   49.7   86.0   125.7   172.1
6200   50.5   87.5   127.7   174.9
6300   51.3   88.9   129.8   177.7
6400   52.2   90.3   131.9   180.5
6500   53.0   91.7   133.9   183.4
6600   53.8   93.1   136.0   186.2
6700   54.6   94.5   138.0   189.0
6800   55.4   95.9   140.1   191.8
6900   56.2   97.3   142.2   194.7
7000   57.0   98.7   144.2   197.5
7100   57.9   100.1   146.3   200.3
7200   58.7   101.6   148.3   203.1
7300   59.5   103.0   150.4   205.9
7400   60.3   104.4   152.5   208.8
7500   61.1   105.8   154.5   211.6
7600   61.9   107.2   156.6   214.4
7700   62.8   108.6   158.6   217.2
7800   63.6   110.0   160.7   220.0
7900   64.4   111.4   162.8   222.9
8000   65.2   112.8   164.8   225.7
8100   66.0   114.3   166.9   228.5
8200   66.8   115.7   168.9   231.3
8300   67.6   117.1   171.0   234.1
8400   68.5   118.5   173.1   237.0
8500   69.3   119.9   175.1   239.8
8600   70.1   121.3   177.2   242.6
8700   70.9   122.7   179.2   245.4
8800   71.7   124.1   181.3   248.3
8900   72.5   125.5   183.4   251.1
9000   73.3   126.9   185.4   253.9
9100   74.2   128.4   187.5   256.7
9200   75.0   129.8   189.5   259.5
9300   75.8   131.2   191.6   262.4
9400   76.6   132.6   193.7   265.2
9500   77.4   134.0   195.7   268.0
So basically if I change at 8k my rpm will drop by nearly a 1/2, now I'm guessing but I would think I would want it to drop by a about 1/4 to keep boost. I'm going to loom a bit more into this as there were other ratios out there for 930s so I better get looking as year the car will be fast but over about 3 miles lol.
But I'm still on it 
So a few questions never fitted a flip front so do I cut here ?

And do I seam weld this bit ?

So a bit of weight loss


Cheers Andy