408 stroker rpm questions

It will end up being a restriction, but your intake should be good until you have some pretty good flowing heads/cam. For instance my combo has almost a full effort cast x head with eddy 800 cfm avs and a moderate to serious flat tappet cam running high 11’s through a 68-69 340 stock intake with the divider cut out. Of all the top end parts you have you could live with the intake the longest. I chased a bad hyd lifter for awhile also. Would stop pulling at 4800 rpm. Went to solid lifter and problem solved.