| OPCON - Using Standard Head?
Adam, is your conversion using the standard head? There seems to be a great deal of misinformation about the limitations of the standard head. Can your conversion deliver 260 - 275 bhp (flywheel) with the standard head? It is often said, correctly or incorrectly, that about 240 bhp is the limit with the standard head using the Eaton. Your more efficient charger may be producing lower intake temperatures & thereby delivering greater power with the standard head through greater intake density. My question is this: With a pullied Eaton blower (15%, 17% or 19%) which is the weaker link in generating more power - the charger's inability to deliver enough air or the head's ability to ingest & exhaust the mixture? I often felt that a pullied Eaton runs out of puff (& loses thermal efficiency) well before the standard head hits its limits? | 
