I went with the Indy EZ heads on the 493 in my 63. I wanted 600 hp as I wanted to go 10's on pump gas thru the exh and it easily reached my goal. Bought my EZ heads from Dwayne Porter and he did some work on them for me. I use the Indy dual plane intake and it has 10.6 comp. 10.70's so far driving to and from the track has made me a happy camper. Ron

Last edited by 383man; 02/08/12 05:03 PM.