on 10/3/03 12:42 AM, John Nasta at [EMAIL PROTECTED] wrote: > So, the PCV valve goes to the large, unported vacuum at the base of the > carb, right? > > Transmission modulator valve goes to ported vacuum, yes? Does anybody know > the diameter of the vac line I will need for that? > > This is for a 69 El Camino w/ Edelbrock carb & TH350. > > Thanks, > John Nasta > > > > > John, The trans modulator connects to direct intake vacuum, generally a fitting located on the intake behind the carb. The ported vacuum source is typically connected to he vacuum advance for the distributor. On my '71, the TH350 modulator line is appx 1/4-inch steel with rubber connections at each end to ensure a leak-proof seal. I'm sure you can order these from most companies that supply brake/fuel lines. HTH
Chuck
