Originally Posted By: mechanicx
Sounds like a really nice set up. The dual snorkel is better than an open element for street IMO. I think the AVS is a great street carb, better than a Holley. With the heat riser blocked and an AVS I bet that 440 really moves. 'vealso heard Sanden A/C compressor were one of the best. I was just curious if you were using POE or PAG compressor oil with th R134a? Sounds like you know your classic cars.
I agree on open-element air cleaners- too loud. Sounds like a foghorn when the secondaries open. Plus the dual-snorkels have a kinda cool OEM retro look- totally non stock for this car, but then so what? So is the 440 (it was a 383 car originally).
That AC system runs PAG just like a new car because it was a new compressor and the system had been flushed, run a few years on R-134a with POE oil, and then flushed again. I'm superstitious about POE oil being safer in retrofitted systems where chlorine residue might be present, but the new double-end capped stabilized PAGs are supposed to be immune to chlorine residue. Plus I figure the flushing prior to running POE with the old compressor for a couple of years, then the flush before putting on the Sanden and PAG probably got it about as clean as possible. The other car (69 with the V-twin compressor) still has POE oil- its been about 6 years since I converted it and it still works great, but it only sees maybe 2000 miles a year.
Originally Posted By: mechanicx
I have no use for Prestone any more, they don't even have Green or G-05 that I know of, just Dexclone.
I trusted Prestone for 20+ years, but when they jumped on the "one size fits all" BSwagon, I lost all respect for them and their products. Zerex has done a fine job of keeping up with the REAL requirements of different manufacturers with different products in their line, everything from old green under the "MaxLife" brand (hard to find, though) to DexCool, P-OAT, and G-05 products.