ryan_welshman 10 Posted June 8, 2014 Is there any reason why someone would put an abf head from mk3 golf onto an 9A block? "Extra" power? Do the two work together as the original head had been damaged? Any reason?? Quote Share this post Link to post Share on other sites
davidwort 0 Posted June 8, 2014 ABF head has lighter valve components and a slightly better design for flow, ABF cams are probably the best for power too Quote Share this post Link to post Share on other sites
