I’m in search of a new cam. I was original going to run this NOS C7FE 2350-A (LeMans cam) but from what I hear and read isn’t wise for the street. My targeted HP is in the 380 range which I think is realistic.
Hi Earl and welcome to gt40s...
My engine is not that different from yours. I chose the more aggressive of the two cams now offered by Inglese / Comp-Cams (Inglese is now owned by Comp-Cams). It's a hydraulic roller cam made specifically for our engines to be used in a street/track venue with Webers. Since Webers are so finicky to tune with cams that have a broad overlap, these actually have a lot less.
Engine is a 331 with Dart Pro1-170 Heads, 10:1 compression, Weber 48IDA carbs 37mm chokes, Inglese "Weber grind" Roller cam with 115LC, 222/224 duration @ .050, .571 Intake, .565 Exhaust. Dyno long primary headers.
After a bit of Jet tuning (Thanks Jac-Mac you really helped out a bunch here) we threw down some pretty good numbers although a bit shy of the hoped for 450 HP the Torque was well above expectations.
414 HP / 430 TQ
We need to revisit the valve springs and/or push rods as she had valve float at 5900. The power band started nosing over around 5700 anyway..
Either way - the engine idled very well - not real choppy but enough of a lump to let you know that something stronger than the family station wagon is lurking...
Throttle response was very crisp.
Final Jetting / Air Correction was;
F7 Emulsion tube, 145 Main Jet, 120 Air Corrector, 120 Idle Holder, 70 Idle Jet
It was interesting that this engine does not like a lot of timing. The power started dropping off at 31 degrees and a lot more at 32 degrees. No detonation present or noted. The fuel used was 92 Octane pump gas. 3.5 PSI fuel pressure.
I hope this is of some help to you Earl...