cutting back plugs vs Bosch+4
Thread Starter
Racer
Joined: Sep 2003
Posts: 260
Likes: 0
From: Indianapolis IN
cutting back plugs vs Bosch+4
I keep reading that cutting back the plugs will give anywhere from 5-10hp.
Does this mean that using Bosch+4 plugs will do the same thing?
So...Is it better to Cut back the rapid fires or just get Bosch4?
Does this mean that using Bosch+4 plugs will do the same thing?
So...Is it better to Cut back the rapid fires or just get Bosch4?
Team Owner
Joined: Dec 2000
Posts: 90,675
Likes: 304
From: SE NY
Cruise-In II Veteran
Re: cutting back plugs vs Bosch+4 (HC4-Vette)
My only experience with the Rapid Fires is that they cost me nearly 1mph in trap speed and the cut-back AC Delcos brought it back; so I just tossed them and stayed with my old cut-back plugs till I could find a new set of AC Delcos.
I have cut back both the Split Fires and the AC Delcos with equal success.
Since others have had success with the Rapid Fires I suggest you try them in stock form and after they get old maybe try the cut-back mod.
I have cut back both the Split Fires and the AC Delcos with equal success.
Since others have had success with the Rapid Fires I suggest you try them in stock form and after they get old maybe try the cut-back mod.
