Thinking about putting a little helper on a low compression 340 I have , what experience does anyone have with this and which one is better do you think, thanks
laying them side by side with a 340 rod and measuring it they look to be identical, but I’m not an expert either , can’t find any other markings on them
I have a similar 416 and ran back to back test on Dyno with stepped tti to 1 7/8 tti , and the bigger primary’s are diffinetely worth it whether there hedman , hooker, tti