whats the best head for 1990 xr3i efi? and where to get it
thinking bout geting some head work done for my 3i got a magnex manifold and system on it at the mo , thinking bout a k&n aswell but not sure if will fit? as dnt know if remote irv or not. was thinking of stage 2 head and not sure how much would cost . also what is best cam for my car just want a mild 1 realy any help apreciated.