Im going to spray for my first time this weekend, just had a few questions. I will be spraying a 100 shot for now. 305 TPI with basic mods

1. Do i need to retard the timing for a 100 shot, and if so, how much?

2. Will TR6's do the job as far as spark plugs go?

Thanks!

 

Depends WHERE your timing is as of right now. Stock is 6 degrees on a TPI engine. I ran 9 degrees roughly on pump gas and it was fine. With a 100 shot I backed it down to 5-6 degrees and it was cool. With the 150 shot I ran 4 and 94 octane still and it needs more octane and maybe a degree or two less of timing. Goodluck! It's FUN

 

TR6's are the right plug (full step cooler then stock) for a 350, but I believe that they are A LOT cooler then stock 305 plugs

 

Thanks. I guess I will run at 5* of timing on 93 octane. As far as the Plugs go, what would work better? Autolite's?

 

after some questioning looks like Im just eithier gonna go get some 1* cooler plugs are just run the stock ones..I let you guys know how it turns out. Thanks for the help!