253checkmate

I have just locked out the advance on my Msd distributor and have replaced it back in the engine. Is there a certain rpm to get the engine at to set the timing? I was thinking of setting it at 31* ? The engine is a custom 496 with 8:5 comp ratio, AFR aluminum heads, M1 procharger, and a R-tech intercooler. Engine makes 800+hp with 8.5lbs. of boost. The builder never locked it out and after speaking with Dean Nickerson it should have been done. Thanks!

abones

I can't answer your question directly, but I'm not a big fan of locked out timing! just my personal opinion! get yourself a programmable ignition system and don't look back

Craney

iTrader: (2)

Shouldn't make a difference what rpm you check it at, locked out is locked out.At 1000rpm or 5000 rpm it should be 31.

vintage chromoly

iTrader: (3)

Yep, "locked" means just that. It. Never changes no matter what rpm you are running.

253checkmate

Thanks for the replies. Got it done. I also just found out how weak my batteries are!

Black Baja

iTrader: (2)

Timing will change a little after the cam starts twisting up like a pretzel.

mike tkach

iTrader: (3)

imo you can run more advance.also,i ran locked timing for years but no more.the daytona cd1 marine box is the way to go imo.

mike tkach

iTrader: (3)

would that pretzel be salted or plain?

Full Force

iTrader: (5)

LOcked timing will eat up starters sometimes, ask me how I know... so hard on starters, also witht hat blower you better monitor EGT and A/F that's pushing it with certain setups at 31, I would monitor, some engines will take more then that, some will take less... all depends.

Black Baja

iTrader: (2)

Depends on manufacturer