Thanks for the advice , seems funny why you've had to do that ?Id of thought with the right springs for the cam you shouldn't need to do that ?

Ive just been lookig on the newman info page and found that with the phase 4 cam theres 2 choice of spring . Doubles or singles , id of thought doubles but why have singles listed aswell ?

http://www.newman-cams.com/pdf/ford.pdf

PS good power from your pinto what spec is it ?