The shop finally broke head down and inspected it. They didnt find crack til they magnafluxed it.
Gonna cost an additional $125 to have crack repaired. Shop owner took head to a friend of his who said he could cold weld the crack no problem, just have to make sure its really clean and do small parts at a time.
So looks like the big stainless valves are now out
Means Im gonna wind up with a ported and polished stock valve size D8 head with a 350cfm 2bbl direct mounted to log.
Since I got laid off the tuned runner multi port EFI big log plenum is on hold. Now were down to stock head with blow through Holley 2bbl carb.
I guess the upside is I dont give up points for running oversized valves.
Gonna cost an additional $125 to have crack repaired. Shop owner took head to a friend of his who said he could cold weld the crack no problem, just have to make sure its really clean and do small parts at a time.
So looks like the big stainless valves are now out

Means Im gonna wind up with a ported and polished stock valve size D8 head with a 350cfm 2bbl direct mounted to log.
Since I got laid off the tuned runner multi port EFI big log plenum is on hold. Now were down to stock head with blow through Holley 2bbl carb.
I guess the upside is I dont give up points for running oversized valves.