I gather it's a 428 block that you are stroking to 461. I'm not a high experienced tuner, but I think I do ok. At any rate I have 406 at 10.1 cr. Runs well on 91. slight detonation on 89. I also have a 461 at 10.5 cr with a bit of detonation trouble on 91. I plan on turning either one into a 433 with a hair under 10 cr.
__________________
Frank M.
75 Firebird
68 Firebird 400 RAIII
66 Chevy II 461 Pontiac in AZ
|