D-Ports X Oval ports / Help please
Newcomer, if this was discussed before, can you guys please point me out.
This is my engine - Type1
1914 running alcohol, 13:1 CR
heads are currently 40X35 minor P&P
W110 (284) with 1,25 rockers
Dual Weber 44 (F3 - 200mains/210air/85idles/250 needles, again alcohol).
The engine is strong, but runs out of breath at 6000 (even a bit before).
My plan is to step up to a W140 (maybe an FK something)
Bump compression to as much as I can, but no more than 14:1
Step up to 42 intake valves (keep the 35,5)
Further port the heads, unshrould and 3 angle job.
Goal:
My goal is around 170hp and 7500rpm
QUestions:
Should I go with D ports or Oval? What are the advantages and disadvantages?
Cam selection? Does that sound ok?
Any further suggestions?
Thanks,
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