I'm kinda wide, AND judgmental at times.
351w EFI performance upgrades?
Junior User
Joined: Oct 2016
Posts: 63
Likes: 0
From: South Kansas
depends on how you acquired the headers and intake not everyone is independently wealthy enough to buy things as needed some trade swap and get things given to them be careful to judge others a wide man makes no judgements period!
FTE Legend
Joined: Jun 2006
Posts: 31,930
Likes: 1,499
From: Ottawa, Ontario
Have you done a compression and leakdown test? From what I have read the valve seats in those Procomp heads leave a lot to be desired in terms of sealing with the valves, and the longer pushrods you used may be compounding the issue, a leakdown test will tell you if the valves are sealing or not and then you just have to figure out if you need to fix one or both of those things.
Logistics Pro
Joined: Jul 2009
Posts: 3,635
Likes: 3
From: Lansdale, PA
This is something you should start your own thread about. This is quite a topic, that can vary from getting a stroker kit, to just towing in low range.
Senior User
Joined: Dec 2016
Posts: 290
Likes: 0
From: Philly
Huge *****. All of the above noted mods or more. More gear in the axle. The best brake upgrade money can buy. A great big liability policy and a last will and testament.
If Miller is still around... Curious how the procomp heads are holding up...
If Miller is still around... Curious how the procomp heads are holding up...
Logistics Pro
Joined: Jul 2009
Posts: 3,635
Likes: 3
From: Lansdale, PA
I tow 20k with my 87 F250... but it's a manual 460 truck. It has stock brakes though. There aren't many upgrades available, so trailer brakes are very important.
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Logistics Pro
Joined: Jul 2009
Posts: 3,635
Likes: 3
From: Lansdale, PA
If your truck has 350 gears, you're going to need an upgrade.
You're going to need to read this whole topic, there are a lot of ideas and tons of info that has everything to do with what you're asking. Lots of power upgrades for your truck.
You're going to need to read this whole topic, there are a lot of ideas and tons of info that has everything to do with what you're asking. Lots of power upgrades for your truck.
Lead Driver
Joined: Jul 2007
Posts: 7,868
Likes: 9
From: Rhode Island
A newer truck. That's way over the weight limit of even a diesel equipped truck from this era.
Post Fiend
Joined: Mar 2002
Posts: 19,402
Likes: 38
From: Bonita Springs FL
+1. The truck simply cannot do what you are asking. My 7.3L would struggle to pull that much.
Hotshot
Joined: Nov 2008
Posts: 15,014
Likes: 35
From: Semper Fi tell I die!
imnot trying to break any land speed records, i just need to tow 70 miles 2 times a year that much, and im over estimating the weight a bit to be safer. i probably end up putting my idi diesel in it and a t18. its ot 410s and i wouldnt tow over 55mph anyhow
Lead Driver
Joined: Jul 2007
Posts: 7,868
Likes: 9
From: Rhode Island
A 4-speed IDI with 4.10s would be absolutely hopeless trying to tow 20K.
Lead Driver
Joined: Jul 2007
Posts: 7,868
Likes: 9
From: Rhode Island
I'm sorry but even a stock OBS 7.3 PSD is a dog with just 12k behind it. 20K behind an IDI would be a miserable experience.