suggestions for my 340?
not sure on mileage etc. etc. either.
best way for more HP from the same cubes is compression. 9.5:1 or 10:1 should give way more power than 8:1
that being said/// your best bet is to find another core somewhere. take your time do a new build getting help you need... a good machinist, your own research, people here.
end result will be a new engine with way more power and you will be sure on the mileage and newness.
it would be bad money spent if you put 2k into bolt-on mods that dont give you power you want and then the engine breaks down as well.
also this way, you can continue to enjoy the car now, drive it this summer and have something to look forward to that will do way better than bolt-on retrofitting stuff
just my 2 cents
