347stroker_carb

i have a 347 stroker with the Anderson N51HR cam and need a little help on finding how much i need to advance my timing from the stock 14* from the 302.

i have it set now at 18* and its running decent but it would help to know the exact mark to help solve some of the other issues i have with it.


thanks

CAM SPECS:

AFM N-51HR

226*/234* - 293*/301* - .520"/.528" - .325"/.330" - 110* - 105*/115*

Overlap: 77 degrees.

1.6 Rocker Ratio

Intake Opening: 8* BTDC

Intake Closing: 38* ABDC

Exhaust Opening: 52* BBDC

Exhaust Closing: 2* BTDC

mjr46

It depends, I run mine at a base of 19 with total at 36 and all in by 3200 rpms I also run a msd billet distributor that has a tunable mech advance.........what issue are you having?? also most 302's run a base stock of 10 degrees not 14

347stroker_carb

well, the car is still running a little crappy but idk whats wrong with it now..lol..still having a little issue with the timing but running at 16-18 degrees now...may be the distributor, wires, plugs, or ignition box..just trying to narrow it down now...also still need to do a compression test to make sure nothing is losing under the valves..any info or help would be nice..thanks

347stroker_carb

just found out that my distributor was setup for a NOS motor and had its guts ripped out to stop it from advancing the timing to run right....so now its gonna cost around $125 to get the guts put back in and work great. hopefully that is all it is..lol

might also have to check if anyone is or has ran a SUMMIT racing ignition timing module...mine seems crappy and cheap...anyone have feedback?