85 5.0 HO 302 - Performance upgrade advice

K

Kboy763

New Member

Mar 25, 2019

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San Diego

Mar 25, 2019

#1

• Mar 25, 2019

• #1

I just purchased a stock '85 HO engine that appears to be in good condition but I'd like to pull some more horse power out of it (300+ range). It has the stock roller cam and heads, as well the stock 4 barrel alum intake. I'd like to keep it carborated and avoid forced induction. Any suggestions on cam or alum head upgrades? Is it a good idea to stroke an HO motor?

Any help or advice is appreciated!

 

mikestang63

SN Certified Technician

Aug 27, 2012

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In the garage

Mar 25, 2019

#2

• Mar 25, 2019

• #2

300hp ...
TFS or AFR heads
Ed Curtis cam
Holley 650 DP carb
Edelbrock intake
LT headers

 

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Barron91lx

Member

Dec 21, 2018

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Newton, KS

Mar 25, 2019

#3

• Mar 25, 2019

• #3

If you don't know whether or not the fuel pump has been upgraded, I would do it early. I just replaced mine and it was like night and day.

 

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K

Kboy763

New Member

Mar 25, 2019

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San Diego

Mar 26, 2019

#4

• Mar 26, 2019

• #4

mikestang63 said:

300hp ...
TFS or AFR heads
Ed Curtis cam
Holley 650 DP carb
Edelbrock intake
LT headers

Click to expand...

Thanks for the break down, I appreciate you provding the suggested combo(s)!

 

K

Kboy763

New Member

Mar 25, 2019

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San Diego

Mar 26, 2019

#5

• Mar 26, 2019

• #5

Barron91lx said:

If you don't know whether or not the fuel pump has been upgraded, I would do it early. I just replaced mine and it was like night and day.

Click to expand...

It has not been upgraded or replaced, but I will do that.

 

Barron91lx

Member

Dec 21, 2018

26

3

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Newton, KS

Mar 26, 2019

#6

• Mar 26, 2019

• #6

Kboy763 said:

It has not been upgraded or replaced, but I will do that.

Click to expand...

It's kind of a pain, but well worth the time. Especially if you are having any performance issues