Originally Posted by
J1mbo
andy you want a lightly ported head for 250hp, mine done by nick waples was very lightly fettled through, only taking away minmal in the areas needed and 3 angles put in !
ask si to do you a head for 250 and im sure it would be less if the price of 410 was for big power
This is true.
The web prices and specs are a guide.
I tend to discuss build options and what is actully required first.
Indead the valve seats and throats are the first to be worked on, then as more air/power is required the ports are then opened up.
Call me to discuss.
Simon.
