I think the cam is too big for your car and gears. That is probably why your cranking compression is a little low although there could be a lot of reasons for a low cranking compression.
My old 466 ran a 236 @ 050 solid flat tappet with ported RPM heads and cranking compression was 200 psi. That engine made 550 on the dyno and 475 rwhp. I tried bigger cams in that engine but they lost toque down low and didn't make up for it at the top end.
If it was my car I'd double check everything before pulling the engine apart, but if it all checks out I'd go about 10 degrees smaller on the cam and see what happens.
In the short term you can tweak the timing a little bit. Maybe add some jet, pull some timing out and stuff like that. Sounds like you have a wideband in the car so that helps to sort stuff out. Keep an eye on the plugs also.
Are you sure the intake port match is good? I had to build my own valley plate with batwing gasket holders to get the intake gaskets lined up properly with the 240 heads.
I'll play with the timing a little bit and maybe give it some more jet.
The intake and heads both looked good on the MW sized gasket, although I was sucking some oil past the gasket, and had to use some motoseal to get it to seal up.
I read a post you made a while back, where a 337 intake kept making power over 7k. I was trying to use that as a basis to match the top end. I probably need to get a Dyno simulation program to play with. Thanks for your thoughts!
