Sounds about right with that cam.

Can you send it to my email? [email protected]. I can try to post it here.

email sent

Seamans dyno sheet.

Here is my last sbc 377cid build with same duration camshaft. Comp xe262. 218/224.110 lsa. Hydraulic flat tappet. It made over 1hp per cubic inch with tiny 155cc intake runner.

Professional engine builders usually recalls tight lsa cams with tiny valves/ports. Would be nice to see the Seamans engine dyno sheet, with tighter lsa cam instead of wide 112lsa. I think the 1hp per cubic inch would be found there.

I did my 454's w/ a 110 lsa,230,236 on semi opened ovals ported to death,victor jr and a 930 bolaw's carb,1 made 524hp other made 521hp,,both had rough 517tq,,to suckers ran good,very snappy in my boat.

Stock valve sizes?

2.19" intake,1.88" exhaust,relieved the combustion chamber near the valves and bore notched the block.

And what heads were you using>