Twere it me , I`d make sure the gasket /heads/intake ports are perfectly lined up ,and elongate the bolt holes , then recheck how they line up and adjust it as needed , .030 aint much to over size a hole , it would only be .015 on each side the ports are the most important !
I check every...
I haven`t followed this thread closely , but the first thing I would do is find out how to degree a cam ,and definitely get rid of that alum. gear . timing chain slop only retards ur timing
the amount the cam will move w/o the crank moving = bad.
After GOING BACK TO THE PICS, IT LOOKS TO ME...
TALK ABOUT FREE REVING. I GOT A BUDDIE THAT USED TO RACE S/STOCK / NHRA , HE WOULD SIDE STEP THE CLUTCH AT 8600-9600
IN A SBC, I WOULD GRIMMACE EVERY TIME HE PULLED UP TO THE LINE !! Guess he knew what he was doing, he held his record 18 times over the years !
^^^^^^^^^ and , if u do it w/ head gaskets , ur going to lose ur quench, making the engine need higher octane ----
Ur duration has a lot to do with the timing events in the engine too , like rrr said , tear it down , unless u got the cam timing way the heck off !
If both are "hooked up" and built alike, the bigger motor hands down, if the 440 is spinning , the 340 will kick its a$$, have less cooling problems , maintenance problems, and handle better .
Which one is more impressive --------------?
plus , u might need more oil for other losses thru out the system. I would put a long 3/8" pipe nipple in the block , to get a good idea of the correct angle to drill it out for a 1/2" pick up, if running a...