and got into the mid 10's with a low compression 428 in a Fairmont. I put it on my 394 and it absolutely finished that engine, after porting my heads and all of the fussing filing, oil passage drilling you could punch it at 3000 and it pulls clean as it anything to 7000 I haver seen, it is a match made in heaven. 452 lbs ft and 488 hp with just a small solid with the lash light and some custom "improvement by the cam maker" 107.5 LSA 230.5 @.050 and .536 at the valve 294S valve springs. When I put that intake on it it was like adding a blower, the stoutest small bore FE I have had with regualar guy parts.
Holley SD forever!