Originally Posted by xbhoon
Has anyone tried the 2v afd's & what problems did you encounter fitting them , what exh r u running & inlet manifold matching, what improvements did you achieve
I have recently fitted up AFD 2v's and opted for the hand ported models.
No fitting problems - inlet and exhaust bolted straight up. Wieand Excellarator 2V and Pacemaker 4V tri Y's (soon to be replaced by Pacy 4 into 1's)
be aware that AFD's have 5/16th stud holes for rocker gear so unless your already running something bigger than std you may have upgrade to some Y/T Platinum R/R's or similar (just another $1100 or so)
I upgraded to a big solid cam and 800 cfm carb. On 1st dyno test made 238rwkw with only 30deg total advance thru toploader & 9". Have since cranked it up to 40 deg total advance with no noticeable pinging and obvious power gain
Revved to 6900 but was leaning out aboive 5000rpm so had to install elect pump and 1/2" line with regulator.
Have just had this done so will be back to dyno soon for carb & timing tune after 4 into 1's go on
Will post results here when I become the next member of the 250rwkw club