STS on a L31 with 170,000 miles

[Mike]

Well if you go boost make sure to get a marine intake or else you'll always be lean.

 

[Aloicious]

absolutely, it doesn't have to be the marine specifically, but that is the easiest and most economical route. you'll definantly need more fuel.

 

[wild_chld1]

supercharged

i put a older magnacharger,at a 117 000 km on my engine,runs like a top next is the marine intake,and raise the boost and intercool it

 

[Lextech]

I would always suggest boosting an old engine first as a learning experience. Why learn to tune on a new engine? I boosted my stock 305 about 3 years ago, thinking that if I break an engine, it won't be a new engine. The 305 is still going strong.

Jeff