Results 1 to 2 of 2

Thread: 74 F250 Highboy Header back suggestion.

  1. #1

    Default 74 F250 Highboy Header back suggestion.

    Hi there. I recently purchased these headers and was wondering what Flowtech header back exhaust kit would be most appropriate and add the best performance: https://www.holley.com/products/exha...parts/32542FLT

    Also, the instructions say the email me header to head flange should be cut 3/4 of the way through for shipping, and to complete that cut before installing to allow the header to be easily installed around the engine mount. I don’t see that these headers have been precut. Do I just pick a point in the middle and cut them? Any concern with cutting through the ceramic coating. Thanks for any and all advice!

  2. #2
    Join Date
    Dec 2009
    Location
    Connecticut
    Posts
    20,522

    Default

    Contact Holley/Flowtech Tech Service (LINK).
    May God's grace bless you in the Lord Jesus Christ.
    '92 Ford Mustang GT: Dominator MPFI & DIS, A/C, Spal dual 12" fans/3-core Frostbite aluminum radiator, Pypes dual 2.5" exhaust/X-pipe/shorty headers, 100HP progressive dry direct-port NOS, 160A 3G alternator, Optima Red battery, LenTech Strip Terminator wide-ratio AOD/2500 RPM converter, FRPP 3.31 gears, Cobra Trac-Lok differential, Moser 31 spline axles, '04 Cobra 4-disc brakes, '93 Cobra booster & M/C, 5-lug Bullitt wheels & 245/45R17 tires.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
About us
Holley has been the undisputed leader in fuel systems for over 100 years. Holley carburetors have powered every NASCAR® Sprint® Cup team and nearly every NHRA® Pro–Stock champion for four decades. Now, Holley EFI is dominating the performance world as well as our products for GM's LS engine. Holley's products also include performance fuel pumps, intake manifolds & engine dress–up products for street performance, race and marine applications. As a single solution, or partnered with products from other Holley companies - Hooker Headers, Flowtech Headers, NOS Nitrous, Weiand, Earl's Performance Plumbing, or Diablosport - Holley products can give you the edge you need over the competition.
Join us